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064af421 | 1 | /* |
fec00620 | 2 | * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks. |
064af421 | 3 | * |
a14bc59f BP |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
064af421 | 7 | * |
a14bc59f BP |
8 | * http://www.apache.org/licenses/LICENSE-2.0 |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
064af421 BP |
15 | */ |
16 | ||
17 | #include <config.h> | |
064af421 BP |
18 | #include <errno.h> |
19 | #include <getopt.h> | |
20 | #include <inttypes.h> | |
bd6b7545 | 21 | #include <sys/socket.h> |
064af421 | 22 | #include <net/if.h> |
064af421 | 23 | #include <signal.h> |
064af421 BP |
24 | #include <stdlib.h> |
25 | #include <string.h> | |
26 | #include <unistd.h> | |
27 | #include <sys/stat.h> | |
28 | #include <sys/time.h> | |
29 | ||
10a24935 | 30 | #include "byte-order.h" |
09246b99 | 31 | #include "classifier.h" |
064af421 BP |
32 | #include "command-line.h" |
33 | #include "compiler.h" | |
34 | #include "dirs.h" | |
35 | #include "dpif.h" | |
09246b99 | 36 | #include "dynamic-string.h" |
064af421 | 37 | #include "netlink.h" |
09246b99 | 38 | #include "nx-match.h" |
064af421 | 39 | #include "odp-util.h" |
f22716dc | 40 | #include "ofp-parse.h" |
064af421 | 41 | #include "ofp-print.h" |
fa37b408 | 42 | #include "ofp-util.h" |
064af421 BP |
43 | #include "ofpbuf.h" |
44 | #include "openflow/nicira-ext.h" | |
45 | #include "openflow/openflow.h" | |
064af421 | 46 | #include "random.h" |
fe55ad15 | 47 | #include "stream-ssl.h" |
064af421 BP |
48 | #include "timeval.h" |
49 | #include "util.h" | |
064af421 | 50 | #include "vconn.h" |
5136ce49 | 51 | #include "vlog.h" |
064af421 | 52 | |
d98e6007 | 53 | VLOG_DEFINE_THIS_MODULE(ofctl); |
064af421 | 54 | |
88ca35ee | 55 | /* --strict: Use strict matching for flow mod commands? */ |
675febfa | 56 | static bool strict; |
064af421 | 57 | |
88ca35ee BP |
58 | /* -F, --flow-format: Flow format to use. Either one of NXFF_* to force a |
59 | * particular flow format or -1 to let ovs-ofctl choose intelligently. */ | |
60 | static int preferred_flow_format = -1; | |
61 | ||
4f564f8d BP |
62 | /* -m, --more: Additional verbosity for ofp-print functions. */ |
63 | static int verbosity; | |
64 | ||
675febfa | 65 | static const struct command all_commands[]; |
064af421 BP |
66 | |
67 | static void usage(void) NO_RETURN; | |
675febfa | 68 | static void parse_options(int argc, char *argv[]); |
064af421 | 69 | |
675febfa BP |
70 | int |
71 | main(int argc, char *argv[]) | |
064af421 | 72 | { |
064af421 | 73 | set_program_name(argv[0]); |
675febfa | 74 | parse_options(argc, argv); |
064af421 | 75 | signal(SIGPIPE, SIG_IGN); |
675febfa | 76 | run_command(argc - optind, argv + optind, all_commands); |
064af421 BP |
77 | return 0; |
78 | } | |
79 | ||
80 | static void | |
675febfa | 81 | parse_options(int argc, char *argv[]) |
064af421 BP |
82 | { |
83 | enum { | |
87c84891 JP |
84 | OPT_STRICT = UCHAR_MAX + 1, |
85 | VLOG_OPTION_ENUMS | |
064af421 BP |
86 | }; |
87 | static struct option long_options[] = { | |
88 | {"timeout", required_argument, 0, 't'}, | |
064af421 | 89 | {"strict", no_argument, 0, OPT_STRICT}, |
88ca35ee | 90 | {"flow-format", required_argument, 0, 'F'}, |
4f564f8d | 91 | {"more", no_argument, 0, 'm'}, |
064af421 BP |
92 | {"help", no_argument, 0, 'h'}, |
93 | {"version", no_argument, 0, 'V'}, | |
87c84891 | 94 | VLOG_LONG_OPTIONS, |
fe55ad15 | 95 | STREAM_SSL_LONG_OPTIONS |
064af421 BP |
96 | {0, 0, 0, 0}, |
97 | }; | |
98 | char *short_options = long_options_to_short_options(long_options); | |
99 | ||
064af421 BP |
100 | for (;;) { |
101 | unsigned long int timeout; | |
102 | int c; | |
103 | ||
104 | c = getopt_long(argc, argv, short_options, long_options, NULL); | |
105 | if (c == -1) { | |
106 | break; | |
107 | } | |
108 | ||
109 | switch (c) { | |
110 | case 't': | |
111 | timeout = strtoul(optarg, NULL, 10); | |
112 | if (timeout <= 0) { | |
113 | ovs_fatal(0, "value %s on -t or --timeout is not at least 1", | |
114 | optarg); | |
115 | } else { | |
116 | time_alarm(timeout); | |
117 | } | |
118 | break; | |
119 | ||
88ca35ee BP |
120 | case 'F': |
121 | preferred_flow_format = ofputil_flow_format_from_string(optarg); | |
122 | if (preferred_flow_format < 0) { | |
123 | ovs_fatal(0, "unknown flow format `%s'", optarg); | |
124 | } | |
125 | break; | |
126 | ||
4f564f8d BP |
127 | case 'm': |
128 | verbosity++; | |
129 | break; | |
130 | ||
064af421 BP |
131 | case 'h': |
132 | usage(); | |
133 | ||
134 | case 'V': | |
135 | OVS_PRINT_VERSION(OFP_VERSION, OFP_VERSION); | |
136 | exit(EXIT_SUCCESS); | |
137 | ||
064af421 | 138 | case OPT_STRICT: |
675febfa | 139 | strict = true; |
064af421 BP |
140 | break; |
141 | ||
87c84891 | 142 | VLOG_OPTION_HANDLERS |
fe55ad15 | 143 | STREAM_SSL_OPTION_HANDLERS |
064af421 BP |
144 | |
145 | case '?': | |
146 | exit(EXIT_FAILURE); | |
147 | ||
148 | default: | |
149 | abort(); | |
150 | } | |
151 | } | |
152 | free(short_options); | |
153 | } | |
154 | ||
155 | static void | |
156 | usage(void) | |
157 | { | |
158 | printf("%s: OpenFlow switch management utility\n" | |
159 | "usage: %s [OPTIONS] COMMAND [ARG...]\n" | |
160 | "\nFor OpenFlow switches:\n" | |
161 | " show SWITCH show OpenFlow information\n" | |
064af421 BP |
162 | " dump-desc SWITCH print switch description\n" |
163 | " dump-tables SWITCH print table stats\n" | |
164 | " mod-port SWITCH IFACE ACT modify port behavior\n" | |
abaad8cf | 165 | " dump-ports SWITCH [PORT] print port statistics\n" |
064af421 BP |
166 | " dump-flows SWITCH print all flow entries\n" |
167 | " dump-flows SWITCH FLOW print matching FLOWs\n" | |
168 | " dump-aggregate SWITCH print aggregate flow statistics\n" | |
169 | " dump-aggregate SWITCH FLOW print aggregate stats for FLOWs\n" | |
d2805da2 | 170 | " queue-stats SWITCH [PORT [QUEUE]] dump queue stats\n" |
064af421 BP |
171 | " add-flow SWITCH FLOW add flow described by FLOW\n" |
172 | " add-flows SWITCH FILE add flows from FILE\n" | |
173 | " mod-flows SWITCH FLOW modify actions of matching FLOWs\n" | |
174 | " del-flows SWITCH [FLOW] delete matching FLOWs\n" | |
a6bc4a03 | 175 | " monitor SWITCH [MISSLEN] print packets received from SWITCH\n" |
064af421 BP |
176 | "\nFor OpenFlow switches and controllers:\n" |
177 | " probe VCONN probe whether VCONN is up\n" | |
178 | " ping VCONN [N] latency of N-byte echos\n" | |
179 | " benchmark VCONN N COUNT bandwidth of COUNT N-byte echos\n" | |
180 | "where each SWITCH is an active OpenFlow connection method.\n", | |
181 | program_name, program_name); | |
182 | vconn_usage(true, false, false); | |
183 | vlog_usage(); | |
184 | printf("\nOther options:\n" | |
185 | " --strict use strict match for flow commands\n" | |
88ca35ee | 186 | " -F, --flow-format=FORMAT force particular flow format\n" |
4f564f8d | 187 | " -m, --more be more verbose printing OpenFlow\n" |
064af421 BP |
188 | " -t, --timeout=SECS give up after SECS seconds\n" |
189 | " -h, --help display this help message\n" | |
190 | " -V, --version display version information\n"); | |
191 | exit(EXIT_SUCCESS); | |
192 | } | |
193 | ||
194 | static void run(int retval, const char *message, ...) | |
195 | PRINTF_FORMAT(2, 3); | |
196 | ||
197 | static void run(int retval, const char *message, ...) | |
198 | { | |
199 | if (retval) { | |
200 | va_list args; | |
201 | ||
064af421 | 202 | va_start(args, message); |
fcaddd4d | 203 | ovs_fatal_valist(retval, message, args); |
064af421 BP |
204 | } |
205 | } | |
206 | \f | |
207 | /* Generic commands. */ | |
208 | ||
1a6f1e2a JG |
209 | static void |
210 | open_vconn_socket(const char *name, struct vconn **vconnp) | |
211 | { | |
212 | char *vconn_name = xasprintf("unix:%s", name); | |
24cd0dee | 213 | VLOG_DBG("connecting to %s", vconn_name); |
1a6f1e2a JG |
214 | run(vconn_open_block(vconn_name, OFP_VERSION, vconnp), |
215 | "connecting to %s", vconn_name); | |
216 | free(vconn_name); | |
217 | } | |
218 | ||
064af421 | 219 | static void |
0caf6bde BP |
220 | open_vconn__(const char *name, const char *default_suffix, |
221 | struct vconn **vconnp) | |
064af421 | 222 | { |
c228a364 | 223 | struct dpif *dpif; |
064af421 | 224 | struct stat s; |
1a6f1e2a JG |
225 | char *bridge_path, *datapath_name, *datapath_type; |
226 | ||
b43c6fe2 | 227 | bridge_path = xasprintf("%s/%s.%s", ovs_rundir(), name, default_suffix); |
1a6f1e2a | 228 | dp_parse_name(name, &datapath_name, &datapath_type); |
064af421 BP |
229 | |
230 | if (strstr(name, ":")) { | |
231 | run(vconn_open_block(name, OFP_VERSION, vconnp), | |
232 | "connecting to %s", name); | |
233 | } else if (!stat(name, &s) && S_ISSOCK(s.st_mode)) { | |
1a6f1e2a JG |
234 | open_vconn_socket(name, vconnp); |
235 | } else if (!stat(bridge_path, &s) && S_ISSOCK(s.st_mode)) { | |
236 | open_vconn_socket(bridge_path, vconnp); | |
237 | } else if (!dpif_open(datapath_name, datapath_type, &dpif)) { | |
064af421 BP |
238 | char dpif_name[IF_NAMESIZE + 1]; |
239 | char *socket_name; | |
064af421 | 240 | |
c228a364 | 241 | run(dpif_port_get_name(dpif, ODPP_LOCAL, dpif_name, sizeof dpif_name), |
064af421 | 242 | "obtaining name of %s", dpif_name); |
c228a364 | 243 | dpif_close(dpif); |
064af421 | 244 | if (strcmp(dpif_name, name)) { |
24cd0dee | 245 | VLOG_DBG("datapath %s is named %s", name, dpif_name); |
064af421 BP |
246 | } |
247 | ||
0caf6bde | 248 | socket_name = xasprintf("%s/%s.%s", |
b43c6fe2 | 249 | ovs_rundir(), dpif_name, default_suffix); |
064af421 BP |
250 | if (stat(socket_name, &s)) { |
251 | ovs_fatal(errno, "cannot connect to %s: stat failed on %s", | |
252 | name, socket_name); | |
253 | } else if (!S_ISSOCK(s.st_mode)) { | |
254 | ovs_fatal(0, "cannot connect to %s: %s is not a socket", | |
255 | name, socket_name); | |
256 | } | |
257 | ||
1a6f1e2a | 258 | open_vconn_socket(socket_name, vconnp); |
064af421 | 259 | free(socket_name); |
064af421 BP |
260 | } else { |
261 | ovs_fatal(0, "%s is not a valid connection method", name); | |
262 | } | |
1a6f1e2a JG |
263 | |
264 | free(datapath_name); | |
265 | free(datapath_type); | |
266 | free(bridge_path); | |
064af421 BP |
267 | } |
268 | ||
0caf6bde BP |
269 | static void |
270 | open_vconn(const char *name, struct vconn **vconnp) | |
271 | { | |
272 | return open_vconn__(name, "mgmt", vconnp); | |
273 | } | |
274 | ||
064af421 BP |
275 | static void * |
276 | alloc_stats_request(size_t body_len, uint16_t type, struct ofpbuf **bufferp) | |
277 | { | |
278 | struct ofp_stats_request *rq; | |
279 | rq = make_openflow((offsetof(struct ofp_stats_request, body) | |
280 | + body_len), OFPT_STATS_REQUEST, bufferp); | |
281 | rq->type = htons(type); | |
282 | rq->flags = htons(0); | |
283 | return rq->body; | |
284 | } | |
285 | ||
286 | static void | |
287 | send_openflow_buffer(struct vconn *vconn, struct ofpbuf *buffer) | |
288 | { | |
289 | update_openflow_length(buffer); | |
290 | run(vconn_send_block(vconn, buffer), "failed to send packet to switch"); | |
291 | } | |
292 | ||
293 | static void | |
294 | dump_transaction(const char *vconn_name, struct ofpbuf *request) | |
295 | { | |
296 | struct vconn *vconn; | |
297 | struct ofpbuf *reply; | |
298 | ||
299 | update_openflow_length(request); | |
300 | open_vconn(vconn_name, &vconn); | |
301 | run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name); | |
4f564f8d | 302 | ofp_print(stdout, reply->data, reply->size, verbosity + 1); |
064af421 BP |
303 | vconn_close(vconn); |
304 | } | |
305 | ||
306 | static void | |
307 | dump_trivial_transaction(const char *vconn_name, uint8_t request_type) | |
308 | { | |
309 | struct ofpbuf *request; | |
310 | make_openflow(sizeof(struct ofp_header), request_type, &request); | |
311 | dump_transaction(vconn_name, request); | |
312 | } | |
313 | ||
314 | static void | |
315 | dump_stats_transaction(const char *vconn_name, struct ofpbuf *request) | |
316 | { | |
44381c1b | 317 | ovs_be32 send_xid = ((struct ofp_header *) request->data)->xid; |
064af421 BP |
318 | struct vconn *vconn; |
319 | bool done = false; | |
320 | ||
321 | open_vconn(vconn_name, &vconn); | |
322 | send_openflow_buffer(vconn, request); | |
323 | while (!done) { | |
02833365 | 324 | ovs_be32 recv_xid; |
064af421 BP |
325 | struct ofpbuf *reply; |
326 | ||
327 | run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed"); | |
328 | recv_xid = ((struct ofp_header *) reply->data)->xid; | |
329 | if (send_xid == recv_xid) { | |
330 | struct ofp_stats_reply *osr; | |
331 | ||
4f564f8d | 332 | ofp_print(stdout, reply->data, reply->size, verbosity + 1); |
064af421 BP |
333 | |
334 | osr = ofpbuf_at(reply, 0, sizeof *osr); | |
335 | done = !osr || !(ntohs(osr->flags) & OFPSF_REPLY_MORE); | |
336 | } else { | |
337 | VLOG_DBG("received reply with xid %08"PRIx32" " | |
338 | "!= expected %08"PRIx32, recv_xid, send_xid); | |
339 | } | |
340 | ofpbuf_delete(reply); | |
341 | } | |
342 | vconn_close(vconn); | |
343 | } | |
344 | ||
345 | static void | |
346 | dump_trivial_stats_transaction(const char *vconn_name, uint8_t stats_type) | |
347 | { | |
348 | struct ofpbuf *request; | |
349 | alloc_stats_request(0, stats_type, &request); | |
350 | dump_stats_transaction(vconn_name, request); | |
351 | } | |
352 | ||
d12513f7 BP |
353 | /* Sends 'request', which should be a request that only has a reply if an error |
354 | * occurs, and waits for it to succeed or fail. If an error does occur, prints | |
355 | * it and exits with an error. */ | |
356 | static void | |
88ca35ee | 357 | transact_multiple_noreply(struct vconn *vconn, struct list *requests) |
d12513f7 | 358 | { |
88ca35ee | 359 | struct ofpbuf *request, *reply; |
d12513f7 | 360 | |
88ca35ee BP |
361 | LIST_FOR_EACH (request, list_node, requests) { |
362 | update_openflow_length(request); | |
363 | } | |
364 | ||
365 | run(vconn_transact_multiple_noreply(vconn, requests, &reply), | |
d12513f7 BP |
366 | "talking to %s", vconn_get_name(vconn)); |
367 | if (reply) { | |
4f564f8d | 368 | ofp_print(stderr, reply->data, reply->size, verbosity + 2); |
d12513f7 BP |
369 | exit(1); |
370 | } | |
371 | ofpbuf_delete(reply); | |
372 | } | |
373 | ||
88ca35ee BP |
374 | /* Sends 'request', which should be a request that only has a reply if an error |
375 | * occurs, and waits for it to succeed or fail. If an error does occur, prints | |
376 | * it and exits with an error. */ | |
377 | static void | |
378 | transact_noreply(struct vconn *vconn, struct ofpbuf *request) | |
379 | { | |
380 | struct list requests; | |
381 | ||
382 | list_init(&requests); | |
383 | list_push_back(&requests, &request->list_node); | |
384 | transact_multiple_noreply(vconn, &requests); | |
385 | } | |
386 | ||
064af421 | 387 | static void |
c69ee87c | 388 | do_show(int argc OVS_UNUSED, char *argv[]) |
064af421 BP |
389 | { |
390 | dump_trivial_transaction(argv[1], OFPT_FEATURES_REQUEST); | |
391 | dump_trivial_transaction(argv[1], OFPT_GET_CONFIG_REQUEST); | |
392 | } | |
393 | ||
064af421 | 394 | static void |
c69ee87c | 395 | do_dump_desc(int argc OVS_UNUSED, char *argv[]) |
064af421 BP |
396 | { |
397 | dump_trivial_stats_transaction(argv[1], OFPST_DESC); | |
398 | } | |
399 | ||
400 | static void | |
c69ee87c | 401 | do_dump_tables(int argc OVS_UNUSED, char *argv[]) |
064af421 BP |
402 | { |
403 | dump_trivial_stats_transaction(argv[1], OFPST_TABLE); | |
404 | } | |
405 | ||
0df0e81d BP |
406 | /* Opens a connection to 'vconn_name', fetches the ofp_phy_port structure for |
407 | * 'port_name' (which may be a port name or number), and copies it into | |
408 | * '*oppp'. */ | |
409 | static void | |
410 | fetch_ofp_phy_port(const char *vconn_name, const char *port_name, | |
411 | struct ofp_phy_port *oppp) | |
abaad8cf JP |
412 | { |
413 | struct ofpbuf *request, *reply; | |
414 | struct ofp_switch_features *osf; | |
0df0e81d | 415 | unsigned int port_no; |
abaad8cf JP |
416 | struct vconn *vconn; |
417 | int n_ports; | |
418 | int port_idx; | |
abaad8cf | 419 | |
0df0e81d BP |
420 | /* Try to interpret the argument as a port number. */ |
421 | if (!str_to_uint(port_name, 10, &port_no)) { | |
422 | port_no = UINT_MAX; | |
abaad8cf JP |
423 | } |
424 | ||
0df0e81d | 425 | /* Fetch the switch's ofp_switch_features. */ |
abaad8cf JP |
426 | make_openflow(sizeof(struct ofp_header), OFPT_FEATURES_REQUEST, &request); |
427 | open_vconn(vconn_name, &vconn); | |
428 | run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name); | |
429 | ||
430 | osf = reply->data; | |
0df0e81d BP |
431 | if (reply->size < sizeof *osf) { |
432 | ovs_fatal(0, "%s: received too-short features reply (only %zu bytes)", | |
433 | vconn_name, reply->size); | |
434 | } | |
abaad8cf JP |
435 | n_ports = (reply->size - sizeof *osf) / sizeof *osf->ports; |
436 | ||
437 | for (port_idx = 0; port_idx < n_ports; port_idx++) { | |
0df0e81d BP |
438 | const struct ofp_phy_port *opp = &osf->ports[port_idx]; |
439 | ||
440 | if (port_no != UINT_MAX | |
441 | ? htons(port_no) == opp->port_no | |
0b61210e | 442 | : !strncmp(opp->name, port_name, sizeof opp->name)) { |
0df0e81d BP |
443 | *oppp = *opp; |
444 | ofpbuf_delete(reply); | |
445 | vconn_close(vconn); | |
446 | return; | |
abaad8cf JP |
447 | } |
448 | } | |
0df0e81d BP |
449 | ovs_fatal(0, "%s: couldn't find port `%s'", vconn_name, port_name); |
450 | } | |
abaad8cf | 451 | |
0df0e81d BP |
452 | /* Returns the port number corresponding to 'port_name' (which may be a port |
453 | * name or number) within the switch 'vconn_name'. */ | |
454 | static uint16_t | |
455 | str_to_port_no(const char *vconn_name, const char *port_name) | |
456 | { | |
457 | unsigned int port_no; | |
458 | ||
459 | if (str_to_uint(port_name, 10, &port_no)) { | |
460 | return port_no; | |
461 | } else { | |
462 | struct ofp_phy_port opp; | |
abaad8cf | 463 | |
0df0e81d BP |
464 | fetch_ofp_phy_port(vconn_name, port_name, &opp); |
465 | return ntohs(opp.port_no); | |
466 | } | |
abaad8cf JP |
467 | } |
468 | ||
88ca35ee BP |
469 | static bool |
470 | try_set_flow_format(struct vconn *vconn, enum nx_flow_format flow_format) | |
471 | { | |
472 | struct ofpbuf *sff, *reply; | |
473 | ||
474 | sff = ofputil_make_set_flow_format(flow_format); | |
475 | run(vconn_transact_noreply(vconn, sff, &reply), | |
476 | "talking to %s", vconn_get_name(vconn)); | |
477 | if (reply) { | |
478 | char *s = ofp_to_string(reply->data, reply->size, 2); | |
479 | VLOG_DBG("%s: failed to set flow format %s, controller replied: %s", | |
480 | vconn_get_name(vconn), | |
481 | ofputil_flow_format_to_string(flow_format), | |
482 | s); | |
483 | free(s); | |
484 | ofpbuf_delete(reply); | |
485 | return false; | |
486 | } | |
487 | return true; | |
488 | } | |
489 | ||
064af421 | 490 | static void |
88ca35ee | 491 | set_flow_format(struct vconn *vconn, enum nx_flow_format flow_format) |
064af421 | 492 | { |
88ca35ee BP |
493 | struct ofpbuf *sff = ofputil_make_set_flow_format(flow_format); |
494 | transact_noreply(vconn, sff); | |
495 | VLOG_DBG("%s: using user-specified flow format %s", | |
496 | vconn_get_name(vconn), | |
497 | ofputil_flow_format_to_string(flow_format)); | |
498 | } | |
064af421 | 499 | |
88ca35ee | 500 | static enum nx_flow_format |
0199c526 BP |
501 | negotiate_highest_flow_format(struct vconn *vconn, |
502 | enum nx_flow_format min_format) | |
88ca35ee | 503 | { |
88ca35ee | 504 | if (preferred_flow_format != -1) { |
f9cbfbe4 BP |
505 | if (preferred_flow_format < min_format) { |
506 | ovs_fatal(0, "%s: cannot use requested flow format %s for " | |
507 | "specified flow", vconn_get_name(vconn), | |
508 | ofputil_flow_format_to_string(min_format)); | |
509 | } | |
510 | ||
511 | set_flow_format(vconn, preferred_flow_format); | |
512 | return preferred_flow_format; | |
513 | } else { | |
514 | enum nx_flow_format flow_format; | |
88ca35ee | 515 | |
f9cbfbe4 BP |
516 | if (try_set_flow_format(vconn, NXFF_NXM)) { |
517 | flow_format = NXFF_NXM; | |
518 | } else if (try_set_flow_format(vconn, NXFF_TUN_ID_FROM_COOKIE)) { | |
519 | flow_format = NXFF_TUN_ID_FROM_COOKIE; | |
520 | } else { | |
521 | flow_format = NXFF_OPENFLOW10; | |
88ca35ee BP |
522 | } |
523 | ||
f9cbfbe4 BP |
524 | if (flow_format < min_format) { |
525 | ovs_fatal(0, "%s: cannot use switch's most advanced flow format " | |
526 | "%s for specified flow", vconn_get_name(vconn), | |
527 | ofputil_flow_format_to_string(min_format)); | |
528 | } | |
88ca35ee | 529 | |
f9cbfbe4 BP |
530 | VLOG_DBG("%s: negotiated flow format %s", vconn_get_name(vconn), |
531 | ofputil_flow_format_to_string(flow_format)); | |
532 | return flow_format; | |
88ca35ee | 533 | } |
064af421 BP |
534 | } |
535 | ||
536 | static void | |
88ca35ee | 537 | do_dump_flows__(int argc, char *argv[], bool aggregate) |
064af421 | 538 | { |
0199c526 | 539 | enum nx_flow_format min_flow_format, flow_format; |
88ca35ee | 540 | struct flow_stats_request fsr; |
064af421 | 541 | struct ofpbuf *request; |
88ca35ee | 542 | struct vconn *vconn; |
064af421 | 543 | |
88ca35ee | 544 | parse_ofp_flow_stats_request_str(&fsr, aggregate, argc > 2 ? argv[2] : ""); |
064af421 | 545 | |
88ca35ee | 546 | open_vconn(argv[1], &vconn); |
0199c526 BP |
547 | min_flow_format = ofputil_min_flow_format(&fsr.match, false, 0); |
548 | flow_format = negotiate_highest_flow_format(vconn, min_flow_format); | |
88ca35ee | 549 | request = ofputil_encode_flow_stats_request(&fsr, flow_format); |
064af421 | 550 | dump_stats_transaction(argv[1], request); |
88ca35ee BP |
551 | vconn_close(vconn); |
552 | } | |
553 | ||
554 | static void | |
555 | do_dump_flows(int argc, char *argv[]) | |
556 | { | |
557 | return do_dump_flows__(argc, argv, false); | |
558 | } | |
559 | ||
560 | static void | |
561 | do_dump_aggregate(int argc, char *argv[]) | |
562 | { | |
563 | return do_dump_flows__(argc, argv, true); | |
064af421 BP |
564 | } |
565 | ||
d2805da2 BP |
566 | static void |
567 | do_queue_stats(int argc, char *argv[]) | |
568 | { | |
569 | struct ofp_queue_stats_request *req; | |
570 | struct ofpbuf *request; | |
571 | ||
572 | req = alloc_stats_request(sizeof *req, OFPST_QUEUE, &request); | |
573 | ||
574 | if (argc > 2 && argv[2][0] && strcasecmp(argv[2], "all")) { | |
575 | req->port_no = htons(str_to_port_no(argv[1], argv[2])); | |
576 | } else { | |
577 | req->port_no = htons(OFPP_ALL); | |
578 | } | |
579 | if (argc > 3 && argv[3][0] && strcasecmp(argv[3], "all")) { | |
580 | req->queue_id = htonl(atoi(argv[3])); | |
581 | } else { | |
582 | req->queue_id = htonl(OFPQ_ALL); | |
583 | } | |
584 | ||
585 | memset(req->pad, 0, sizeof req->pad); | |
586 | ||
587 | dump_stats_transaction(argv[1], request); | |
588 | } | |
589 | ||
0fbc9f11 BP |
590 | /* Sets up the flow format for a vconn that will be used to modify the flow |
591 | * table. Returns the flow format used, after possibly adding an OpenFlow | |
592 | * request to 'requests'. | |
593 | * | |
594 | * If 'preferred_flow_format' is -1, returns NXFF_OPENFLOW10 without modifying | |
595 | * 'requests', since NXFF_OPENFLOW10 is the default flow format for any | |
596 | * OpenFlow connection. | |
597 | * | |
598 | * If 'preferred_flow_format' is a specific format, adds a request to set that | |
599 | * format to 'requests' and returns the format. */ | |
600 | static enum nx_flow_format | |
601 | set_initial_format_for_flow_mod(struct list *requests) | |
602 | { | |
603 | if (preferred_flow_format < 0) { | |
604 | return NXFF_OPENFLOW10; | |
605 | } else { | |
606 | struct ofpbuf *sff; | |
607 | ||
608 | sff = ofputil_make_set_flow_format(preferred_flow_format); | |
609 | list_push_back(requests, &sff->list_node); | |
610 | return preferred_flow_format; | |
611 | } | |
612 | } | |
613 | ||
614 | /* Checks that 'flow_format' is acceptable as a flow format after a flow_mod | |
615 | * operation, given the global 'preferred_flow_format'. */ | |
616 | static void | |
617 | check_final_format_for_flow_mod(enum nx_flow_format flow_format) | |
618 | { | |
0199c526 | 619 | if (preferred_flow_format >= 0 && flow_format > preferred_flow_format) { |
0fbc9f11 BP |
620 | ovs_fatal(0, "flow cannot be expressed in flow format %s " |
621 | "(flow format %s or better is required)", | |
622 | ofputil_flow_format_to_string(preferred_flow_format), | |
623 | ofputil_flow_format_to_string(flow_format)); | |
624 | } | |
625 | } | |
626 | ||
064af421 | 627 | static void |
4989c59f | 628 | do_flow_mod_file__(int argc OVS_UNUSED, char *argv[], uint16_t command) |
064af421 | 629 | { |
88ca35ee BP |
630 | enum nx_flow_format flow_format; |
631 | struct list requests; | |
064af421 | 632 | struct vconn *vconn; |
4989c59f BP |
633 | FILE *file; |
634 | ||
635 | file = !strcmp(argv[2], "-") ? stdin : fopen(argv[2], "r"); | |
636 | if (file == NULL) { | |
637 | ovs_fatal(errno, "%s: open", argv[2]); | |
638 | } | |
049c8dc2 | 639 | |
88ca35ee | 640 | list_init(&requests); |
0fbc9f11 BP |
641 | flow_format = set_initial_format_for_flow_mod(&requests); |
642 | ||
064af421 | 643 | open_vconn(argv[1], &vconn); |
4989c59f BP |
644 | while (parse_ofp_flow_mod_file(&requests, &flow_format, file, command)) { |
645 | check_final_format_for_flow_mod(flow_format); | |
646 | transact_multiple_noreply(vconn, &requests); | |
647 | } | |
064af421 | 648 | vconn_close(vconn); |
064af421 | 649 | |
4989c59f BP |
650 | if (file != stdin) { |
651 | fclose(file); | |
652 | } | |
88ca35ee BP |
653 | } |
654 | ||
064af421 | 655 | static void |
4989c59f | 656 | do_flow_mod__(int argc, char *argv[], uint16_t command) |
064af421 | 657 | { |
88ca35ee BP |
658 | enum nx_flow_format flow_format; |
659 | struct list requests; | |
064af421 | 660 | struct vconn *vconn; |
064af421 | 661 | |
4989c59f BP |
662 | if (argc > 2 && !strcmp(argv[2], "-")) { |
663 | do_flow_mod_file__(argc, argv, command); | |
664 | return; | |
064af421 BP |
665 | } |
666 | ||
88ca35ee | 667 | list_init(&requests); |
0fbc9f11 | 668 | flow_format = set_initial_format_for_flow_mod(&requests); |
88ca35ee | 669 | |
4989c59f BP |
670 | parse_ofp_flow_mod_str(&requests, &flow_format, argc > 2 ? argv[2] : "", |
671 | command); | |
672 | check_final_format_for_flow_mod(flow_format); | |
673 | ||
064af421 | 674 | open_vconn(argv[1], &vconn); |
4989c59f | 675 | transact_multiple_noreply(vconn, &requests); |
064af421 | 676 | vconn_close(vconn); |
4989c59f | 677 | } |
88ca35ee | 678 | |
4989c59f BP |
679 | static void |
680 | do_add_flow(int argc, char *argv[]) | |
681 | { | |
682 | do_flow_mod__(argc, argv, OFPFC_ADD); | |
683 | } | |
684 | ||
685 | static void | |
686 | do_add_flows(int argc, char *argv[]) | |
687 | { | |
688 | do_flow_mod_file__(argc, argv, OFPFC_ADD); | |
064af421 BP |
689 | } |
690 | ||
691 | static void | |
88ca35ee | 692 | do_mod_flows(int argc, char *argv[]) |
064af421 | 693 | { |
88ca35ee | 694 | do_flow_mod__(argc, argv, strict ? OFPFC_MODIFY_STRICT : OFPFC_MODIFY); |
064af421 BP |
695 | } |
696 | ||
88ca35ee BP |
697 | static void |
698 | do_del_flows(int argc, char *argv[]) | |
064af421 | 699 | { |
88ca35ee | 700 | do_flow_mod__(argc, argv, strict ? OFPFC_DELETE_STRICT : OFPFC_DELETE); |
064af421 BP |
701 | } |
702 | ||
703 | static void | |
0caf6bde BP |
704 | monitor_vconn(struct vconn *vconn) |
705 | { | |
706 | for (;;) { | |
707 | struct ofpbuf *b; | |
708 | run(vconn_recv_block(vconn, &b), "vconn_recv"); | |
4f564f8d | 709 | ofp_print(stderr, b->data, b->size, verbosity + 2); |
0caf6bde BP |
710 | ofpbuf_delete(b); |
711 | } | |
712 | } | |
713 | ||
714 | static void | |
715 | do_monitor(int argc, char *argv[]) | |
064af421 BP |
716 | { |
717 | struct vconn *vconn; | |
718 | ||
719 | open_vconn(argv[1], &vconn); | |
720 | if (argc > 2) { | |
721 | int miss_send_len = atoi(argv[2]); | |
064af421 BP |
722 | struct ofp_switch_config *osc; |
723 | struct ofpbuf *buf; | |
724 | ||
725 | osc = make_openflow(sizeof *osc, OFPT_SET_CONFIG, &buf); | |
064af421 | 726 | osc->miss_send_len = htons(miss_send_len); |
88ca35ee | 727 | transact_noreply(vconn, buf); |
064af421 | 728 | } |
0caf6bde BP |
729 | monitor_vconn(vconn); |
730 | } | |
731 | ||
732 | static void | |
733 | do_snoop(int argc OVS_UNUSED, char *argv[]) | |
734 | { | |
735 | struct vconn *vconn; | |
736 | ||
737 | open_vconn__(argv[1], "snoop", &vconn); | |
738 | monitor_vconn(vconn); | |
064af421 BP |
739 | } |
740 | ||
741 | static void | |
abaad8cf | 742 | do_dump_ports(int argc, char *argv[]) |
064af421 | 743 | { |
abaad8cf JP |
744 | struct ofp_port_stats_request *req; |
745 | struct ofpbuf *request; | |
746 | uint16_t port; | |
747 | ||
748 | req = alloc_stats_request(sizeof *req, OFPST_PORT, &request); | |
749 | port = argc > 2 ? str_to_port_no(argv[1], argv[2]) : OFPP_NONE; | |
750 | req->port_no = htons(port); | |
751 | dump_stats_transaction(argv[1], request); | |
064af421 BP |
752 | } |
753 | ||
754 | static void | |
c69ee87c | 755 | do_probe(int argc OVS_UNUSED, char *argv[]) |
064af421 BP |
756 | { |
757 | struct ofpbuf *request; | |
758 | struct vconn *vconn; | |
759 | struct ofpbuf *reply; | |
760 | ||
761 | make_openflow(sizeof(struct ofp_header), OFPT_ECHO_REQUEST, &request); | |
762 | open_vconn(argv[1], &vconn); | |
763 | run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]); | |
764 | if (reply->size != sizeof(struct ofp_header)) { | |
765 | ovs_fatal(0, "reply does not match request"); | |
766 | } | |
767 | ofpbuf_delete(reply); | |
768 | vconn_close(vconn); | |
769 | } | |
770 | ||
771 | static void | |
c69ee87c | 772 | do_mod_port(int argc OVS_UNUSED, char *argv[]) |
064af421 | 773 | { |
064af421 | 774 | struct ofp_port_mod *opm; |
0df0e81d BP |
775 | struct ofp_phy_port opp; |
776 | struct ofpbuf *request; | |
064af421 | 777 | struct vconn *vconn; |
064af421 | 778 | |
0df0e81d | 779 | fetch_ofp_phy_port(argv[1], argv[2], &opp); |
064af421 BP |
780 | |
781 | opm = make_openflow(sizeof(struct ofp_port_mod), OFPT_PORT_MOD, &request); | |
0df0e81d BP |
782 | opm->port_no = opp.port_no; |
783 | memcpy(opm->hw_addr, opp.hw_addr, sizeof opm->hw_addr); | |
064af421 BP |
784 | opm->config = htonl(0); |
785 | opm->mask = htonl(0); | |
786 | opm->advertise = htonl(0); | |
787 | ||
f4866781 | 788 | if (!strcasecmp(argv[3], "up")) { |
064af421 | 789 | opm->mask |= htonl(OFPPC_PORT_DOWN); |
f4866781 | 790 | } else if (!strcasecmp(argv[3], "down")) { |
064af421 BP |
791 | opm->mask |= htonl(OFPPC_PORT_DOWN); |
792 | opm->config |= htonl(OFPPC_PORT_DOWN); | |
f4866781 | 793 | } else if (!strcasecmp(argv[3], "flood")) { |
064af421 | 794 | opm->mask |= htonl(OFPPC_NO_FLOOD); |
f4866781 | 795 | } else if (!strcasecmp(argv[3], "noflood")) { |
064af421 BP |
796 | opm->mask |= htonl(OFPPC_NO_FLOOD); |
797 | opm->config |= htonl(OFPPC_NO_FLOOD); | |
798 | } else { | |
799 | ovs_fatal(0, "unknown mod-port command '%s'", argv[3]); | |
800 | } | |
801 | ||
0df0e81d | 802 | open_vconn(argv[1], &vconn); |
88ca35ee | 803 | transact_noreply(vconn, request); |
064af421 BP |
804 | vconn_close(vconn); |
805 | } | |
806 | ||
807 | static void | |
675febfa | 808 | do_ping(int argc, char *argv[]) |
064af421 BP |
809 | { |
810 | size_t max_payload = 65535 - sizeof(struct ofp_header); | |
811 | unsigned int payload; | |
812 | struct vconn *vconn; | |
813 | int i; | |
814 | ||
815 | payload = argc > 2 ? atoi(argv[2]) : 64; | |
816 | if (payload > max_payload) { | |
817 | ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload); | |
818 | } | |
819 | ||
820 | open_vconn(argv[1], &vconn); | |
821 | for (i = 0; i < 10; i++) { | |
822 | struct timeval start, end; | |
823 | struct ofpbuf *request, *reply; | |
824 | struct ofp_header *rq_hdr, *rpy_hdr; | |
825 | ||
826 | rq_hdr = make_openflow(sizeof(struct ofp_header) + payload, | |
827 | OFPT_ECHO_REQUEST, &request); | |
828 | random_bytes(rq_hdr + 1, payload); | |
829 | ||
279c9e03 | 830 | xgettimeofday(&start); |
064af421 | 831 | run(vconn_transact(vconn, ofpbuf_clone(request), &reply), "transact"); |
279c9e03 | 832 | xgettimeofday(&end); |
064af421 BP |
833 | |
834 | rpy_hdr = reply->data; | |
835 | if (reply->size != request->size | |
836 | || memcmp(rpy_hdr + 1, rq_hdr + 1, payload) | |
837 | || rpy_hdr->xid != rq_hdr->xid | |
838 | || rpy_hdr->type != OFPT_ECHO_REPLY) { | |
839 | printf("Reply does not match request. Request:\n"); | |
4f564f8d | 840 | ofp_print(stdout, request, request->size, verbosity + 2); |
064af421 | 841 | printf("Reply:\n"); |
4f564f8d | 842 | ofp_print(stdout, reply, reply->size, verbosity + 2); |
064af421 | 843 | } |
2886875a | 844 | printf("%zu bytes from %s: xid=%08"PRIx32" time=%.1f ms\n", |
44381c1b | 845 | reply->size - sizeof *rpy_hdr, argv[1], ntohl(rpy_hdr->xid), |
064af421 BP |
846 | (1000*(double)(end.tv_sec - start.tv_sec)) |
847 | + (.001*(end.tv_usec - start.tv_usec))); | |
848 | ofpbuf_delete(request); | |
849 | ofpbuf_delete(reply); | |
850 | } | |
851 | vconn_close(vconn); | |
852 | } | |
853 | ||
854 | static void | |
c69ee87c | 855 | do_benchmark(int argc OVS_UNUSED, char *argv[]) |
064af421 BP |
856 | { |
857 | size_t max_payload = 65535 - sizeof(struct ofp_header); | |
858 | struct timeval start, end; | |
859 | unsigned int payload_size, message_size; | |
860 | struct vconn *vconn; | |
861 | double duration; | |
862 | int count; | |
863 | int i; | |
864 | ||
865 | payload_size = atoi(argv[2]); | |
866 | if (payload_size > max_payload) { | |
867 | ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload); | |
868 | } | |
869 | message_size = sizeof(struct ofp_header) + payload_size; | |
870 | ||
871 | count = atoi(argv[3]); | |
872 | ||
873 | printf("Sending %d packets * %u bytes (with header) = %u bytes total\n", | |
874 | count, message_size, count * message_size); | |
875 | ||
876 | open_vconn(argv[1], &vconn); | |
279c9e03 | 877 | xgettimeofday(&start); |
064af421 BP |
878 | for (i = 0; i < count; i++) { |
879 | struct ofpbuf *request, *reply; | |
880 | struct ofp_header *rq_hdr; | |
881 | ||
882 | rq_hdr = make_openflow(message_size, OFPT_ECHO_REQUEST, &request); | |
883 | memset(rq_hdr + 1, 0, payload_size); | |
884 | run(vconn_transact(vconn, request, &reply), "transact"); | |
885 | ofpbuf_delete(reply); | |
886 | } | |
279c9e03 | 887 | xgettimeofday(&end); |
064af421 BP |
888 | vconn_close(vconn); |
889 | ||
890 | duration = ((1000*(double)(end.tv_sec - start.tv_sec)) | |
891 | + (.001*(end.tv_usec - start.tv_usec))); | |
892 | printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n", | |
893 | duration, count / (duration / 1000.0), | |
894 | count * message_size / (duration / 1000.0)); | |
895 | } | |
896 | ||
09246b99 BP |
897 | static void |
898 | do_help(int argc OVS_UNUSED, char *argv[] OVS_UNUSED) | |
899 | { | |
900 | usage(); | |
901 | } | |
902 | \f | |
0199c526 BP |
903 | /* replace-flows and diff-flows commands. */ |
904 | ||
905 | /* A flow table entry, possibly with two different versions. */ | |
906 | struct fte { | |
907 | struct cls_rule rule; /* Within a "struct classifier". */ | |
908 | struct fte_version *versions[2]; | |
909 | }; | |
910 | ||
911 | /* One version of a Flow Table Entry. */ | |
912 | struct fte_version { | |
913 | ovs_be64 cookie; | |
914 | uint16_t idle_timeout; | |
915 | uint16_t hard_timeout; | |
916 | uint16_t flags; | |
917 | union ofp_action *actions; | |
918 | size_t n_actions; | |
919 | }; | |
920 | ||
921 | /* Frees 'version' and the data that it owns. */ | |
922 | static void | |
923 | fte_version_free(struct fte_version *version) | |
924 | { | |
925 | if (version) { | |
926 | free(version->actions); | |
927 | free(version); | |
928 | } | |
929 | } | |
930 | ||
931 | /* Returns true if 'a' and 'b' are the same, false if they differ. | |
932 | * | |
933 | * Ignores differences in 'flags' because there's no way to retrieve flags from | |
934 | * an OpenFlow switch. We have to assume that they are the same. */ | |
935 | static bool | |
936 | fte_version_equals(const struct fte_version *a, const struct fte_version *b) | |
937 | { | |
938 | return (a->cookie == b->cookie | |
939 | && a->idle_timeout == b->idle_timeout | |
940 | && a->hard_timeout == b->hard_timeout | |
941 | && a->n_actions == b->n_actions | |
942 | && !memcmp(a->actions, b->actions, | |
943 | a->n_actions * sizeof *a->actions)); | |
944 | } | |
945 | ||
946 | /* Prints 'version' on stdout. Expects the caller to have printed the rule | |
947 | * associated with the version. */ | |
948 | static void | |
949 | fte_version_print(const struct fte_version *version) | |
950 | { | |
951 | struct ds s; | |
952 | ||
953 | if (version->cookie != htonll(0)) { | |
954 | printf(" cookie=0x%"PRIx64, ntohll(version->cookie)); | |
955 | } | |
956 | if (version->idle_timeout != OFP_FLOW_PERMANENT) { | |
957 | printf(" idle_timeout=%"PRIu16, version->idle_timeout); | |
958 | } | |
959 | if (version->hard_timeout != OFP_FLOW_PERMANENT) { | |
960 | printf(" hard_timeout=%"PRIu16, version->hard_timeout); | |
961 | } | |
962 | ||
963 | ds_init(&s); | |
964 | ofp_print_actions(&s, (const struct ofp_action_header *) version->actions, | |
965 | version->n_actions * sizeof *version->actions); | |
966 | printf(" %s\n", ds_cstr(&s)); | |
967 | ds_destroy(&s); | |
968 | } | |
969 | ||
970 | static struct fte * | |
971 | fte_from_cls_rule(const struct cls_rule *cls_rule) | |
972 | { | |
973 | return cls_rule ? CONTAINER_OF(cls_rule, struct fte, rule) : NULL; | |
974 | } | |
975 | ||
976 | /* Frees 'fte' and its versions. */ | |
977 | static void | |
978 | fte_free(struct fte *fte) | |
979 | { | |
980 | if (fte) { | |
981 | fte_version_free(fte->versions[0]); | |
982 | fte_version_free(fte->versions[1]); | |
983 | free(fte); | |
984 | } | |
985 | } | |
986 | ||
987 | /* Frees all of the FTEs within 'cls'. */ | |
988 | static void | |
989 | fte_free_all(struct classifier *cls) | |
990 | { | |
991 | struct cls_cursor cursor; | |
992 | struct fte *fte, *next; | |
993 | ||
994 | cls_cursor_init(&cursor, cls, NULL); | |
995 | CLS_CURSOR_FOR_EACH_SAFE (fte, next, rule, &cursor) { | |
996 | classifier_remove(cls, &fte->rule); | |
997 | fte_free(fte); | |
998 | } | |
999 | } | |
1000 | ||
1001 | /* Searches 'cls' for an FTE matching 'rule', inserting a new one if | |
1002 | * necessary. Sets 'version' as the version of that rule with the given | |
1003 | * 'index', replacing any existing version, if any. | |
1004 | * | |
1005 | * Takes ownership of 'version'. */ | |
1006 | static void | |
1007 | fte_insert(struct classifier *cls, const struct cls_rule *rule, | |
1008 | struct fte_version *version, int index) | |
1009 | { | |
1010 | struct fte *old, *fte; | |
1011 | ||
1012 | fte = xzalloc(sizeof *fte); | |
1013 | fte->rule = *rule; | |
1014 | fte->versions[index] = version; | |
1015 | ||
1016 | old = fte_from_cls_rule(classifier_insert(cls, &fte->rule)); | |
1017 | if (old) { | |
1018 | fte_version_free(old->versions[index]); | |
1019 | fte->versions[!index] = old->versions[!index]; | |
1020 | free(old); | |
1021 | } | |
1022 | } | |
1023 | ||
1024 | /* Reads the flows in 'filename' as flow table entries in 'cls' for the version | |
1025 | * with the specified 'index'. Returns the minimum flow format required to | |
1026 | * represent the flows that were read. */ | |
1027 | static enum nx_flow_format | |
1028 | read_flows_from_file(const char *filename, struct classifier *cls, int index) | |
1029 | { | |
1030 | enum nx_flow_format min_flow_format; | |
1031 | struct ds s; | |
1032 | FILE *file; | |
1033 | ||
1034 | file = !strcmp(filename, "-") ? stdin : fopen(filename, "r"); | |
1035 | if (file == NULL) { | |
1036 | ovs_fatal(errno, "%s: open", filename); | |
1037 | } | |
1038 | ||
1039 | ds_init(&s); | |
1040 | min_flow_format = NXFF_OPENFLOW10; | |
1041 | while (!ds_get_preprocessed_line(&s, file)) { | |
1042 | struct fte_version *version; | |
1043 | enum nx_flow_format min_ff; | |
1044 | struct ofpbuf actions; | |
1045 | struct flow_mod fm; | |
1046 | uint8_t table_idx; | |
1047 | ||
1048 | ofpbuf_init(&actions, 64); | |
1049 | parse_ofp_str(&fm, &table_idx, &actions, ds_cstr(&s)); | |
1050 | ||
1051 | version = xmalloc(sizeof *version); | |
1052 | version->cookie = fm.cookie; | |
1053 | version->idle_timeout = fm.idle_timeout; | |
1054 | version->hard_timeout = fm.hard_timeout; | |
1055 | version->flags = fm.flags & (OFPFF_SEND_FLOW_REM | OFPFF_EMERG); | |
1056 | version->n_actions = actions.size / sizeof *version->actions; | |
1057 | version->actions = ofpbuf_steal_data(&actions); | |
1058 | ||
1059 | min_ff = ofputil_min_flow_format(&fm.cr, true, fm.cookie); | |
1060 | min_flow_format = MAX(min_flow_format, min_ff); | |
1061 | check_final_format_for_flow_mod(min_flow_format); | |
1062 | ||
1063 | fte_insert(cls, &fm.cr, version, index); | |
1064 | } | |
1065 | ds_destroy(&s); | |
1066 | ||
1067 | if (file != stdin) { | |
1068 | fclose(file); | |
1069 | } | |
1070 | ||
1071 | return min_flow_format; | |
1072 | } | |
1073 | ||
1074 | /* Reads the OpenFlow flow table from 'vconn', which has currently active flow | |
1075 | * format 'flow_format', and adds them as flow table entries in 'cls' for the | |
1076 | * version with the specified 'index'. */ | |
1077 | static void | |
1078 | read_flows_from_switch(struct vconn *vconn, enum nx_flow_format flow_format, | |
1079 | struct classifier *cls, int index) | |
1080 | { | |
1081 | struct flow_stats_request fsr; | |
1082 | struct ofpbuf *request; | |
1083 | ovs_be32 send_xid; | |
1084 | bool done; | |
1085 | ||
1086 | fsr.aggregate = false; | |
1087 | cls_rule_init_catchall(&fsr.match, 0); | |
1088 | fsr.out_port = OFPP_NONE; | |
1089 | fsr.table_id = 0xff; | |
1090 | request = ofputil_encode_flow_stats_request(&fsr, flow_format); | |
1091 | send_xid = ((struct ofp_header *) request->data)->xid; | |
1092 | send_openflow_buffer(vconn, request); | |
1093 | ||
1094 | done = false; | |
1095 | while (!done) { | |
1096 | ovs_be32 recv_xid; | |
1097 | struct ofpbuf *reply; | |
1098 | ||
1099 | run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed"); | |
1100 | recv_xid = ((struct ofp_header *) reply->data)->xid; | |
1101 | if (send_xid == recv_xid) { | |
1102 | const struct ofputil_msg_type *type; | |
1103 | const struct ofp_stats_reply *osr; | |
1104 | enum ofputil_msg_code code; | |
1105 | ||
1106 | ofputil_decode_msg_type(reply->data, &type); | |
1107 | code = ofputil_msg_type_code(type); | |
1108 | if (code != OFPUTIL_OFPST_FLOW_REPLY && | |
1109 | code != OFPUTIL_NXST_FLOW_REPLY) { | |
1110 | ovs_fatal(0, "received bad reply: %s", | |
1111 | ofp_to_string(reply->data, reply->size, | |
1112 | verbosity + 1)); | |
1113 | } | |
1114 | ||
1115 | osr = reply->data; | |
1116 | if (!(osr->flags & htons(OFPSF_REPLY_MORE))) { | |
1117 | done = true; | |
1118 | } | |
1119 | ||
1120 | for (;;) { | |
1121 | struct fte_version *version; | |
1122 | struct ofputil_flow_stats fs; | |
1123 | int retval; | |
1124 | ||
1125 | retval = ofputil_decode_flow_stats_reply(&fs, reply, | |
1126 | flow_format); | |
1127 | if (retval) { | |
1128 | if (retval != EOF) { | |
1129 | ovs_fatal(0, "parse error in reply"); | |
1130 | } | |
1131 | break; | |
1132 | } | |
1133 | ||
1134 | version = xmalloc(sizeof *version); | |
1135 | version->cookie = fs.cookie; | |
1136 | version->idle_timeout = fs.idle_timeout; | |
1137 | version->hard_timeout = fs.hard_timeout; | |
1138 | version->flags = 0; | |
1139 | version->n_actions = fs.n_actions; | |
1140 | version->actions = xmemdup(fs.actions, | |
1141 | fs.n_actions * sizeof *fs.actions); | |
1142 | ||
1143 | fte_insert(cls, &fs.rule, version, index); | |
1144 | } | |
0199c526 BP |
1145 | } else { |
1146 | VLOG_DBG("received reply with xid %08"PRIx32" " | |
1147 | "!= expected %08"PRIx32, recv_xid, send_xid); | |
1148 | } | |
1149 | ofpbuf_delete(reply); | |
1150 | } | |
1151 | } | |
1152 | ||
1153 | static void | |
1154 | fte_make_flow_mod(const struct fte *fte, int index, uint16_t command, | |
1155 | enum nx_flow_format flow_format, struct list *packets) | |
1156 | { | |
1157 | const struct fte_version *version = fte->versions[index]; | |
1158 | struct flow_mod fm; | |
1159 | struct ofpbuf *ofm; | |
1160 | ||
1161 | fm.cr = fte->rule; | |
1162 | fm.cookie = version->cookie; | |
1163 | fm.command = command; | |
1164 | fm.idle_timeout = version->idle_timeout; | |
1165 | fm.hard_timeout = version->hard_timeout; | |
1166 | fm.buffer_id = UINT32_MAX; | |
1167 | fm.out_port = OFPP_NONE; | |
1168 | fm.flags = version->flags; | |
1169 | if (command == OFPFC_ADD || command == OFPFC_MODIFY || | |
1170 | command == OFPFC_MODIFY_STRICT) { | |
1171 | fm.actions = version->actions; | |
1172 | fm.n_actions = version->n_actions; | |
1173 | } else { | |
1174 | fm.actions = NULL; | |
1175 | fm.n_actions = 0; | |
1176 | } | |
1177 | ||
1178 | ofm = ofputil_encode_flow_mod(&fm, flow_format); | |
1179 | list_push_back(packets, &ofm->list_node); | |
1180 | } | |
1181 | ||
1182 | static void | |
1183 | do_replace_flows(int argc OVS_UNUSED, char *argv[]) | |
1184 | { | |
1185 | enum { FILE_IDX = 0, SWITCH_IDX = 1 }; | |
1186 | enum nx_flow_format min_flow_format, flow_format; | |
1187 | struct cls_cursor cursor; | |
1188 | struct classifier cls; | |
1189 | struct list requests; | |
1190 | struct vconn *vconn; | |
1191 | struct fte *fte; | |
1192 | ||
1193 | classifier_init(&cls); | |
1194 | min_flow_format = read_flows_from_file(argv[2], &cls, FILE_IDX); | |
1195 | ||
1196 | open_vconn(argv[1], &vconn); | |
1197 | flow_format = negotiate_highest_flow_format(vconn, min_flow_format); | |
1198 | read_flows_from_switch(vconn, flow_format, &cls, SWITCH_IDX); | |
1199 | ||
1200 | list_init(&requests); | |
1201 | ||
1202 | /* Delete flows that exist on the switch but not in the file. */ | |
1203 | cls_cursor_init(&cursor, &cls, NULL); | |
1204 | CLS_CURSOR_FOR_EACH (fte, rule, &cursor) { | |
1205 | struct fte_version *file_ver = fte->versions[FILE_IDX]; | |
1206 | struct fte_version *sw_ver = fte->versions[SWITCH_IDX]; | |
1207 | ||
1208 | if (sw_ver && !file_ver) { | |
1209 | fte_make_flow_mod(fte, SWITCH_IDX, OFPFC_DELETE_STRICT, | |
1210 | flow_format, &requests); | |
1211 | } | |
1212 | } | |
1213 | ||
1214 | /* Add flows that exist in the file but not on the switch. | |
1215 | * Update flows that exist in both places but differ. */ | |
1216 | cls_cursor_init(&cursor, &cls, NULL); | |
1217 | CLS_CURSOR_FOR_EACH (fte, rule, &cursor) { | |
1218 | struct fte_version *file_ver = fte->versions[FILE_IDX]; | |
1219 | struct fte_version *sw_ver = fte->versions[SWITCH_IDX]; | |
1220 | ||
1221 | if (file_ver && (!sw_ver || !fte_version_equals(sw_ver, file_ver))) { | |
1222 | fte_make_flow_mod(fte, FILE_IDX, OFPFC_ADD, flow_format, | |
1223 | &requests); | |
1224 | } | |
1225 | } | |
1226 | transact_multiple_noreply(vconn, &requests); | |
1227 | vconn_close(vconn); | |
1228 | ||
1229 | fte_free_all(&cls); | |
1230 | } | |
1231 | ||
1232 | static void | |
1233 | read_flows_from_source(const char *source, struct classifier *cls, int index) | |
1234 | { | |
1235 | struct stat s; | |
1236 | ||
1237 | if (source[0] == '/' || source[0] == '.' | |
1238 | || (!strchr(source, ':') && !stat(source, &s))) { | |
1239 | read_flows_from_file(source, cls, index); | |
1240 | } else { | |
1241 | enum nx_flow_format flow_format; | |
1242 | struct vconn *vconn; | |
1243 | ||
1244 | open_vconn(source, &vconn); | |
1245 | flow_format = negotiate_highest_flow_format(vconn, NXFF_OPENFLOW10); | |
1246 | read_flows_from_switch(vconn, flow_format, cls, index); | |
1247 | vconn_close(vconn); | |
1248 | } | |
1249 | } | |
1250 | ||
1251 | static void | |
1252 | do_diff_flows(int argc OVS_UNUSED, char *argv[]) | |
1253 | { | |
1254 | bool differences = false; | |
1255 | struct cls_cursor cursor; | |
1256 | struct classifier cls; | |
1257 | struct fte *fte; | |
1258 | ||
1259 | classifier_init(&cls); | |
1260 | read_flows_from_source(argv[1], &cls, 0); | |
1261 | read_flows_from_source(argv[2], &cls, 1); | |
1262 | ||
1263 | cls_cursor_init(&cursor, &cls, NULL); | |
1264 | CLS_CURSOR_FOR_EACH (fte, rule, &cursor) { | |
1265 | struct fte_version *a = fte->versions[0]; | |
1266 | struct fte_version *b = fte->versions[1]; | |
1267 | ||
1268 | if (!a || !b || !fte_version_equals(a, b)) { | |
1269 | char *rule_s = cls_rule_to_string(&fte->rule); | |
1270 | if (a) { | |
1271 | printf("-%s", rule_s); | |
1272 | fte_version_print(a); | |
1273 | } | |
1274 | if (b) { | |
1275 | printf("+%s", rule_s); | |
1276 | fte_version_print(b); | |
1277 | } | |
1278 | free(rule_s); | |
1279 | ||
1280 | differences = true; | |
1281 | } | |
1282 | } | |
1283 | ||
1284 | fte_free_all(&cls); | |
1285 | ||
1286 | if (differences) { | |
1287 | exit(2); | |
1288 | } | |
1289 | } | |
1290 | \f | |
09246b99 BP |
1291 | /* Undocumented commands for unit testing. */ |
1292 | ||
770f1f66 BP |
1293 | static void |
1294 | print_packet_list(struct list *packets) | |
1295 | { | |
1296 | struct ofpbuf *packet, *next; | |
1297 | ||
1298 | LIST_FOR_EACH_SAFE (packet, next, list_node, packets) { | |
1299 | ofp_print(stdout, packet->data, packet->size, verbosity); | |
1300 | list_remove(&packet->list_node); | |
1301 | ofpbuf_delete(packet); | |
1302 | } | |
1303 | } | |
1304 | ||
1305 | /* "parse-flow FLOW": parses the argument as a flow (like add-flow) and prints | |
1306 | * it back to stdout. */ | |
1307 | static void | |
1308 | do_parse_flow(int argc OVS_UNUSED, char *argv[]) | |
1309 | { | |
1310 | enum nx_flow_format flow_format; | |
1311 | struct list packets; | |
1312 | ||
1313 | flow_format = NXFF_OPENFLOW10; | |
1314 | if (preferred_flow_format > 0) { | |
1315 | flow_format = preferred_flow_format; | |
1316 | } | |
1317 | ||
1318 | list_init(&packets); | |
1319 | parse_ofp_flow_mod_str(&packets, &flow_format, argv[1], OFPFC_ADD); | |
1320 | print_packet_list(&packets); | |
1321 | } | |
1322 | ||
fec00620 BP |
1323 | /* "parse-flows FILENAME": reads the named file as a sequence of flows (like |
1324 | * add-flows) and prints each of the flows back to stdout. */ | |
0e581146 BP |
1325 | static void |
1326 | do_parse_flows(int argc OVS_UNUSED, char *argv[]) | |
1327 | { | |
88ca35ee BP |
1328 | enum nx_flow_format flow_format; |
1329 | struct list packets; | |
0e581146 BP |
1330 | FILE *file; |
1331 | ||
1332 | file = fopen(argv[1], "r"); | |
1333 | if (file == NULL) { | |
1334 | ovs_fatal(errno, "%s: open", argv[2]); | |
1335 | } | |
1336 | ||
88ca35ee BP |
1337 | flow_format = NXFF_OPENFLOW10; |
1338 | if (preferred_flow_format > 0) { | |
1339 | flow_format = preferred_flow_format; | |
1340 | } | |
1341 | ||
770f1f66 | 1342 | list_init(&packets); |
02c5617b | 1343 | while (parse_ofp_flow_mod_file(&packets, &flow_format, file, OFPFC_ADD)) { |
770f1f66 | 1344 | print_packet_list(&packets); |
0e581146 BP |
1345 | } |
1346 | fclose(file); | |
1347 | } | |
1348 | ||
fec00620 BP |
1349 | /* "parse-nx-match": reads a series of nx_match specifications as strings from |
1350 | * stdin, does some internal fussing with them, and then prints them back as | |
1351 | * strings on stdout. */ | |
064af421 | 1352 | static void |
09246b99 BP |
1353 | do_parse_nx_match(int argc OVS_UNUSED, char *argv[] OVS_UNUSED) |
1354 | { | |
1355 | struct ds in; | |
1356 | ||
1357 | ds_init(&in); | |
1358 | while (!ds_get_line(&in, stdin)) { | |
1359 | struct ofpbuf nx_match; | |
1360 | struct cls_rule rule; | |
1361 | int match_len; | |
1362 | int error; | |
1363 | char *s; | |
1364 | ||
1365 | /* Delete comments, skip blank lines. */ | |
1366 | s = ds_cstr(&in); | |
1367 | if (*s == '#') { | |
1368 | puts(s); | |
1369 | continue; | |
1370 | } | |
1371 | if (strchr(s, '#')) { | |
1372 | *strchr(s, '#') = '\0'; | |
1373 | } | |
1374 | if (s[strspn(s, " ")] == '\0') { | |
1375 | putchar('\n'); | |
1376 | continue; | |
1377 | } | |
1378 | ||
1379 | /* Convert string to nx_match. */ | |
1380 | ofpbuf_init(&nx_match, 0); | |
1381 | match_len = nx_match_from_string(ds_cstr(&in), &nx_match); | |
1382 | ||
1383 | /* Convert nx_match to cls_rule. */ | |
1384 | error = nx_pull_match(&nx_match, match_len, 0, &rule); | |
1385 | if (!error) { | |
1386 | char *out; | |
1387 | ||
1388 | /* Convert cls_rule back to nx_match. */ | |
1389 | ofpbuf_uninit(&nx_match); | |
1390 | ofpbuf_init(&nx_match, 0); | |
1391 | match_len = nx_put_match(&nx_match, &rule); | |
1392 | ||
1393 | /* Convert nx_match to string. */ | |
1394 | out = nx_match_to_string(nx_match.data, match_len); | |
1395 | puts(out); | |
1396 | free(out); | |
1397 | } else { | |
1398 | printf("nx_pull_match() returned error %x\n", error); | |
1399 | } | |
1400 | ||
1401 | ofpbuf_uninit(&nx_match); | |
1402 | } | |
1403 | ds_destroy(&in); | |
064af421 BP |
1404 | } |
1405 | ||
fec00620 BP |
1406 | /* "ofp-print HEXSTRING [VERBOSITY]": Converts the hex digits in HEXSTRING into |
1407 | * binary data, interpreting them as an OpenFlow message, and prints the | |
1408 | * OpenFlow message on stdout, at VERBOSITY (level 2 by default). */ | |
1409 | static void | |
1410 | do_ofp_print(int argc, char *argv[]) | |
1411 | { | |
1412 | struct ofpbuf packet; | |
1413 | ||
1414 | ofpbuf_init(&packet, strlen(argv[1]) / 2); | |
1415 | if (ofpbuf_put_hex(&packet, argv[1], NULL)[0] != '\0') { | |
1416 | ovs_fatal(0, "trailing garbage following hex bytes"); | |
1417 | } | |
1418 | ofp_print(stdout, packet.data, packet.size, argc > 2 ? atoi(argv[2]) : 2); | |
1419 | ofpbuf_uninit(&packet); | |
1420 | } | |
1421 | ||
675febfa | 1422 | static const struct command all_commands[] = { |
064af421 | 1423 | { "show", 1, 1, do_show }, |
7f1089b5 | 1424 | { "monitor", 1, 2, do_monitor }, |
0caf6bde | 1425 | { "snoop", 1, 1, do_snoop }, |
064af421 BP |
1426 | { "dump-desc", 1, 1, do_dump_desc }, |
1427 | { "dump-tables", 1, 1, do_dump_tables }, | |
1428 | { "dump-flows", 1, 2, do_dump_flows }, | |
1429 | { "dump-aggregate", 1, 2, do_dump_aggregate }, | |
d2805da2 | 1430 | { "queue-stats", 1, 3, do_queue_stats }, |
064af421 BP |
1431 | { "add-flow", 2, 2, do_add_flow }, |
1432 | { "add-flows", 2, 2, do_add_flows }, | |
1433 | { "mod-flows", 2, 2, do_mod_flows }, | |
1434 | { "del-flows", 1, 2, do_del_flows }, | |
0199c526 BP |
1435 | { "replace-flows", 2, 2, do_replace_flows }, |
1436 | { "diff-flows", 2, 2, do_diff_flows }, | |
abaad8cf | 1437 | { "dump-ports", 1, 2, do_dump_ports }, |
064af421 BP |
1438 | { "mod-port", 3, 3, do_mod_port }, |
1439 | { "probe", 1, 1, do_probe }, | |
1440 | { "ping", 1, 2, do_ping }, | |
1441 | { "benchmark", 3, 3, do_benchmark }, | |
064af421 | 1442 | { "help", 0, INT_MAX, do_help }, |
09246b99 BP |
1443 | |
1444 | /* Undocumented commands for testing. */ | |
770f1f66 | 1445 | { "parse-flow", 1, 1, do_parse_flow }, |
09246b99 BP |
1446 | { "parse-flows", 1, 1, do_parse_flows }, |
1447 | { "parse-nx-match", 0, 0, do_parse_nx_match }, | |
fec00620 | 1448 | { "ofp-print", 1, 2, do_ofp_print }, |
09246b99 | 1449 | |
064af421 BP |
1450 | { NULL, 0, 0, NULL }, |
1451 | }; |